.content{
    display: flex;
    justify-content: space-between;
}
.content>div:nth-child(1){
    margin-left: 400px;
}
.content>div:nth-child(2){
    margin-right: 400px;
}
.content>div:nth-child(1)>div:nth-child(1){
    margin-top: 100px;
    font-size: 50px;
    color: gray;
    text-align: center;
}
.content>div:nth-child(1)>div:nth-child(3){
    text-align: center;
}
.content>div:nth-child(1)>div:nth-child(4)>img{
    /*border:1px solid red;*/
    margin-left: 20px;
    margin-top: 20px;
}
/*-----------------------------------------*/
.content{
    display: flex;
    justify-content: center;
    /*border: 1px dashed red;*/
}
.content>div>div>div{
    line-height: 30px;
    height: 30px;
}
.content>div>div>div:nth-child(2){
    width: 600px;
    /*height: 30px;*/
    background-color: rgb(238,238,238);
    /*border: 1px dashed red;*/
    padding: 0 20px;
}
.content>div>div:nth-child(3)>div:nth-child(2){
    line-height: 20px;
    height: 100px;
}
.content>div>div:last-child{
    display: flex;
    justify-content: center;
    margin: 30px;

}

.content>div>div:last-child >div {
    color: white;
    background-color: rgb(230, 145, 55);
    padding: 5px 20px;
    cursor: pointer;
    border-radius: 45px;
}
.liuyan{
    margin-top: 150px;
}